Lecture
Ouchi Illusion (Ouchi, 1977).
Look closely at the ball in the center.
It seems that the pattern on it is moving from side to side?
Without taking your eyes off the center of the circle, move your head.
There was an illusion that the pattern around the ball is moving?
Illusion of Riley (Bridget Riley)
Is there an illusion of movement of squares?
It seems that black and white stripes are moving in opposite directions?
Look at the black dot in the center and, without taking your eyes off, move your head back and forth.
Circles around the point will start moving.
Look to the center and move your head back and forth.
In this case, the illusion is stronger - it can occur even if the head is not moved.
Posted by: Nicholas Wade
If you look closely at the center of this figure, it will seem that it rotates and shines from it.
Brown illusion
Which circles move faster: large or small?
The speeds of the circles are the same!
Look intently at the center of the helix.
An illusion should arise that it slowly rotates.
Fractal illusion
There is an illusion that the pattern pulsates
See the waves? This is not an animation, but a static picture!
Illusion of Akiyoshi Kitaoka, 2002
Look at the center of the picture and move your head back and forth.
Circles in the figure will turn into moving spirals.
Illusion of Akiyoshi Kitaoka, 2002
Circles are perceived as rotating.
Illusion of Akiyoshi Kitaoka, 2003
And the circles, in fact, are completely still.
The illusion of Akiyoshi Kitaoka, 2004
Is the picture pulsing?
To further enhance the effect, looking at the center of the picture, move your head back and forth.
Illusion of Akiyoshi Kitaoka, 2003
Rotating squares with rounded edges cause the illusion that the pattern pulsates
Look to the center.
Do the circles rotate?
By Bob Ausbourne, 2004
Coffee Beans Illusion
There is a feeling that the picture is swaying?
Another illusion of coffee beans.
Do the circles rotate?
The parallelogram must appear to be trembling and pslegk moving left and right.
Is the wheel turning clockwise?
Now imagine that it rotates counterclockwise.
10-20 seconds continuously look at the center of the tunnel moving on you, and then stop the animation by clicking the "Stop" button in the browser.
Movement in the tunnel will be reversed.
(To resume the animation, click "Refresh").
Author: Oleg Ivanov
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Psychology of errors and illusions
Terms: Psychology of errors and illusions